Patents by Inventor Bruno Chardin

Bruno Chardin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing hydrogen sulphide and the use thereof, in particular, for depolluting heavy metal-containing flows
    Patent number: 7862721
    Abstract: A process for the decontamination of an effluent containing one or more dissolved metals is provided. The process includes producing hydrogen sulphide in an aqueous medium by culturing alkaliphilic sulphate-reducing or thio-sulphate reducing bacteria in the presence of an organic compound serving as an electron donor and in the presence of a sulphurous compound serving as an electron acceptor. The effluent is contacted with the hydrogen sulphide and the dissolved metals are reduced and/or precipitated in the form of metal sulphides.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: January 4, 2011
    Assignee: Institut de Recherche pour le Development (IRD)
    Inventors: Bernard Marcel Noel Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin
  • METHOD FOR PRODUCING HYDROGEN SULPHIDE AND THE USE THEREOF, IN PARTICULAR, FOR DEPOLLUTING HEAVY METAL-CONTAINING FLOWS
    Publication number: 20100307985
    Abstract: A process for the decontamination of an effluent containing one or more dissolved metals is provided. The process includes producing hydrogen sulphide in an aqueous medium by culturing alkaliphilic sulphate-reducing or thio-sulphate reducing bacteria in the presence of an organic compound serving as an electron donor and in the presence of a sulphurous compound serving as an electron acceptor. The effluent is contacted with the hydrogen sulphide and the dissolved metals are reduced and/or precipitated in the form of metal sulphides.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 9, 2010
    Applicant: INSTITUT DE RECHERCHE POUR LE DEVELOPPEMENT (IRD)
    Inventors: Bernard Marcel Noël Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin
  • Method for producing hydrogen sulphide and the use thereof, in particular, for depolluting heavy metal-containing flows
    Patent number: 7799222
    Abstract: The invention relates to using alcalophilic sulphate-reducing bacteria selected from at least one species of a Desulfohalobiaceae or Desulfonatronum species family or from species whose gene encoding for ribosomal PARN 16S has a homology equal to or greater than 97% with a corresponding gene of any species of the Desulfohalobiaceae or Desulfonatronum species family for producing a hydrogen sulphide substantially soluble in an aqueous medium.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: September 21, 2010
    Assignee: Institut de Recherche pour le Developpement (IRD)
    Inventors: Bernard Marcel Noël Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin
  • Method for producing hydrogen sulphide and the use thereof, in particular, for depolluting heavy metal-containing flows
    Publication number: 20090071897
    Abstract: The invention relates to using alcalophilic sulphate-reducing bacteria selected from at least one species of a Desulfohalobiaceae or Desulfonatronum species family or from species whose gene encoding for ribosomal PARN 16S has a homology equal to or greater than 97% with a corresponding gene of any species of the Desulfohalobiaceae or Desulfonatronum species family for producing a hydrogen sulphide substantially soluble in an aqueous medium.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 19, 2009
    Applicant: INSTITUT DE RECHERCHE POUR LE DEVELOPPEMENT (IRD)
    Inventors: Bernard Marcel Noel Ollivier, Yannick Aman Baptiste Combet-Blanc, Marie-Laure Fardeau, Bruno Chardin